﻿// See https://aka.ms/new-console-template for more information
//Console.WriteLine("Hello, World!");
//using System;

//class PerfectNumbers
//{
    static void Main()
    {
        Console.WriteLine("1000 以内的完数：");

        for (int i = 1; i < 1000; i++)
        {
            int sum = 0;
            for (int j = 1; j < i; j++)
            {
                if (i % j == 0)
                {
                    sum += j;
                }
            }

            if (sum == i)
            {
                Console.Write(i + " ");
            }
        }

        Console.WriteLine();
    }
//}